Method bindForWriting

src/draw.cpp:930–938

static std::vector<framebuffer*> fbStack;

void framebuffer::bindForWriting() {
    if (fbo) {
        GL_CHECK_ERR(glBindFramebuffer(GL_FRAMEBUFFER, fbo));
        GL_CHECK_ERR(glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, fbo_color, 0));
        GL_CHECK_ERR(glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, fbo_depth, 0));
        GL_CHECK_ERR(glViewport(0, 0, xsize, ysize));
        fbStack.push_back(this);
    }
}

void framebuffer::bindForReading() const {
    GL_CHECK_ERR(glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo));